Haptic interaction of organs based on the spherical harmonic representation

Yang, Zhengyi, Vegh, Viktor, Tieng, Quang M., Olsen-Kettle, Louise M. and Wang, Deming (2010) Haptic interaction of organs based on the spherical harmonic representation. Concepts in Magnetic Resonance. Part B: Magnetic Resonance Engineering, 37B 2: 45-55. doi:10.1002/cmr.b.20160


Author Yang, Zhengyi
Vegh, Viktor
Tieng, Quang M.
Olsen-Kettle, Louise M.
Wang, Deming
Title Haptic interaction of organs based on the spherical harmonic representation
Journal name Concepts in Magnetic Resonance. Part B: Magnetic Resonance Engineering   Check publisher's open access policy
ISSN 1552-5031
1552-504X
Publication date 2010-08
Sub-type Article (original research)
DOI 10.1002/cmr.b.20160
Volume 37B
Issue 2
Start page 45
End page 55
Total pages 11
Place of publication Hoboken, NJ, U.S.A.
Publisher John Wiley & Sons
Collection year 2011
Language eng
Abstract Visual and haptic organ interactions in real time are essential in virtual reality–based medical simulations to provide training, early diagnosis, and improved treatment planning. This work presents a robust method of computing the deformation of an elastic object when external forces are applied. Point-based haptic interaction between the user of the haptic device and an object is outlined and is formulated as a deformation problem over the surface. The model is expressed in the spherical harmonic basis, from which both haptic device force feedback and object surface updates are calculated. Haptic and visual updates are performed in the same basis, in turn providing significant benefits of computing efficiency and multiresolution modeling. Partially, this is due to the fact that in the model the objects are represented as surfaces. A haptic device is used to probe different prostates that have been segmented and reconstructed from MR images to validate the findings. The calculated deformation and feedback force is further validated against the established finite element method.
Keyword Haptic rendering
Spherical harmonics
Haptic interaction
Force feedback
Surface deformation
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Official 2011 Collection
Centre for Advanced Imaging Publications
 
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Created: Fri, 10 Sep 2010, 15:54:45 EST by Sandrine Ducrot on behalf of Centre for Advanced Imaging